KR970700883A - Optical unit for optically scanning an information surface, and optical scanning arrangement including the optical unit - Google Patents

Optical unit for optically scanning an information surface, and optical scanning arrangement including the optical unit Download PDF

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Publication number
KR970700883A
KR970700883A KR1019960704167A KR19960704167A KR970700883A KR 970700883 A KR970700883 A KR 970700883A KR 1019960704167 A KR1019960704167 A KR 1019960704167A KR 19960704167 A KR19960704167 A KR 19960704167A KR 970700883 A KR970700883 A KR 970700883A
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KR
South Korea
Prior art keywords
optical
target system
unit
pupil
optical unit
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KR1019960704167A
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Korean (ko)
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KR100403493B1 (en
Inventor
로스마렌 게라드 에드어드 반
Original Assignee
제이.지.에이. 롤페스
필립스 일렉트로닉스 엔.브이.
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Publication of KR100403493B1 publication Critical patent/KR100403493B1/en

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Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
    • G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
    • G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
    • G06K7/10544—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation by scanning of the records by radiation in the optical part of the electromagnetic spectrum
    • G06K7/10792—Special measures in relation to the object to be scanned
    • G06K7/10801—Multidistance reading
    • G06K7/10811—Focalisation
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/002—Recording, reproducing or erasing systems characterised by the shape or form of the carrier
    • G11B7/003—Recording, reproducing or erasing systems characterised by the shape or form of the carrier with webs, filaments or wires, e.g. belts, spooled tapes or films of quasi-infinite extent
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
    • G11B7/085—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam into, or out of, its operative position or across tracks, otherwise than during the transducing operation, e.g. for adjustment or preliminary positioning or track change or selection
    • G11B7/08547—Arrangements for positioning the light beam only without moving the head, e.g. using static electro-optical elements
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
    • G11B7/09—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
    • G11B7/0925—Electromechanical actuators for lens positioning
    • G11B7/093—Electromechanical actuators for lens positioning for focusing and tracking
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
    • G11B7/09—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
    • G11B7/0925—Electromechanical actuators for lens positioning
    • G11B7/0932—Details of sprung supports
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B11/00—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor
    • G11B11/10—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field
    • G11B11/105—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field using a beam of light or a magnetic field for recording by change of magnetisation and a beam of light for reproducing, i.e. magneto-optical, e.g. light-induced thermomagnetic recording, spin magnetisation recording, Kerr or Faraday effect reproducing
    • G11B11/1055—Disposition or mounting of transducers relative to record carriers
    • G11B11/10556—Disposition or mounting of transducers relative to record carriers with provision for moving or switching or masking the transducers in or out of their operative position
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B11/00—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor
    • G11B11/10—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field
    • G11B11/105—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field using a beam of light or a magnetic field for recording by change of magnetisation and a beam of light for reproducing, i.e. magneto-optical, e.g. light-induced thermomagnetic recording, spin magnetisation recording, Kerr or Faraday effect reproducing
    • G11B11/1055—Disposition or mounting of transducers relative to record carriers
    • G11B11/10576—Disposition or mounting of transducers relative to record carriers with provision for moving the transducers for maintaining alignment or spacing relative to the carrier
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
    • G11B7/09—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
    • G11B7/0925—Electromechanical actuators for lens positioning
    • G11B7/0933—Details of stationary parts
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
    • G11B7/09—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
    • G11B7/0925—Electromechanical actuators for lens positioning
    • G11B7/0935—Details of the moving parts

Abstract

표면 특히 기록매체(9)의 정보표면을 광학적으로 스캐닝하기 위한 광학 유닛(1). 상기 유닛은 프레임(13), 방사원 유닛(15), 회전 거울 유닛(17), 그리고 정보표면에 스캐닝 점을 형성하기 위한 목표 시스템(19)으로 구성되며, 상기 목표 시스템은 도입 동공(19b)과 광학축(19a)를 갖는다. 적절한 관점으로부터 상기 회전 거울 유닛은 방사원 유닛과 목표 시스템사이에 위치하며, 매달림 수단은 광축을 따라 목표 시스템의 세로운동과 광축과 도입 동공을 가로지르는 점과 일치하는 선회축 주위를 목표 시스템의 선회운동을 허용한다. 가동 수단은 상기 운동에 따라 목표 시스템을 구동한다.Optical unit (1) for optically scanning the surface, in particular the information surface of the record carrier (9). The unit consists of a frame 13, a radiation source unit 15, a rotating mirror unit 17, and a target system 19 for forming a scanning point on the information surface, which target system includes an introduction pupil 19b. It has an optical axis 19a. From a suitable point of view, the rotating mirror unit is located between the radiation source unit and the target system, and the suspending means pivots about the target system along the optical axis and around the pivot axis coinciding with the point crossing the optical axis and the entrance pupil. Allow. The movable means drives the target system in accordance with the movement.

Description

정보표면을 광학적으로 스캐닝하기 위한 광학 유닛 및 상기 광학 유닛을 포함하는 광학 스캐닝 배열체(Opitical unit for optically scanning an information surface, and optical scanning arrangement including the optical unit)Optical unit for optically scanning an information surface, and optical scanning arrangement including the optical unit

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

도1은 본 발명에 관련돠 광학 유닛을 포함하는 본 발명에 따른 배열체를 개략적으로 도시한 사시도이다.1 is a perspective view schematically showing an arrangement according to the invention comprising an optical unit according to the invention.

Claims (6)

프레임, 방사원 유닛, 회전 거울 유닛 그리고 표면에서 스캐닝 점을 형성하기 위한 수단으로 구성되는 표면을 광학적으로 스캐닝하기 위한 광학 유닛에 있어서, 상기 스캐닝 점을 형성하기 위한 수단은 도입동공과 광축을 가지는 목표 시스템, 도면의 광점으로부터 방사원 유닛과 목표 시스템 사이에 위치하는 회전 거울 유닛, 프레임에 대하여 목표 시스템을 움직일 수 있게 지지하기 위하여 제공되며 광축을 따라 목표 시스템의 세로 운동과 광축과 도입동공의 교차점과 적어도 실질적으로 일치하는 선회축 주위로 목표 시스템의 선회운동을 허용하는 매달기 수단 그리고 상기 운동에 따라 목표 시스템을 구동하기 위하여 제공되는 구동수단을 포함하는 것을 특징으로 하는 광학 유닛.An optical unit for optically scanning a surface consisting of a frame, a radiation source unit, a rotating mirror unit and means for forming a scanning point on the surface, wherein the means for forming the scanning point comprises a target system having an introduced pupil and an optical axis A rotating mirror unit positioned between the radiation source unit and the target system from the light point of the drawing, provided to movably support the target system with respect to the frame and at least substantially equal to the longitudinal motion of the target system along the optical axis and the intersection of the optical axis and the introduced pupil. Suspending means for allowing the pivoting movement of the target system about the coincident pivot axis and driving means provided for driving the target system in accordance with the movement. 제1항에 있어서, 상기 매달기 수단은 도입 동공가까이에 위치하는 제1 매달기 수단, 광축을 따라서 도시된 도입 동공으로부터 떨어져 있는 제2 매달기 수단을 포함하며, 상기 매달기 유닛들은 상기 목표 시스템을 프레임에 연결하고 상기 목표 시스템의 세로운동과 적어도 실질적으로 도입 동공에서 광축을 가로지르게 위치하는 선회축 주위로의 선회운동을 허용하는 것을 특징으로 하는 광학 유닛.The system of claim 1, wherein the suspending means comprises a first suspending means located near an introducing pupil, a second suspending means away from the introducing pupil shown along the optical axis, wherein the suspending units comprise the target system. Is coupled to the frame and permits pivoting about a pivotal axis positioned transversely to the optical axis in the longitudinal movement of the target system and at least substantially the introduced pupil. 제1항 또는 제2항에 있어서, 상기 가동수단은 전기 코일 유닛과 영구 자석 유닛으로 구성되며, 상기 유닛들중 하나는 목표 시스템에 고착되고 다른 하나는 프레임에 고착되는 것을 특징으로 하는 광학 유닛.The optical unit according to claim 1 or 2, wherein the movable means comprises an electric coil unit and a permanent magnet unit, one of the units being fixed to the target system and the other to the frame. 제3항에 있어서, 상기 전자기 수단은 도입 동공으로부터 간격을 두고있는 것을 특징으로 하는 광학 유닛.4. An optical unit according to claim 3, wherein the electromagnetic means is spaced from the entrance pupil. 광학 배열체에 있어서, 제1항 내지 제4항중 어느 한항에 있어서의 광학유닛을 포함하며 또한 스캐닝하기 위하여 표면을 이동하기 위한 수단과 상호관련되는 광학 유닛을 포함하는 것을 특징으로 하는 광학 배열체.An optical arrangement comprising an optical unit according to any one of claims 1 to 4 and comprising an optical unit correlated with the means for moving the surface for scanning. 광학 배열체에 있어서, 제2항의 광학 유닛을 포함하고 또한 상기 표면을 형성하는 정보표면으로 구성되는 광학 테이프를 광학 유닛의 목표 시스템을 통과하여 움직이게 하기 위한 구동수단을 포함하며, 상기 광학 테이프의 일부는 적어도 실질적으로 목표 시스템의 선회축에 수직으로 신장되는 테이프 이송 방향을 가지는 목표 시스템과 마주하는 것을 특징으로 하는 광학 배열체.An optical arrangement comprising: drive means for moving an optical tape comprising the optical unit of claim 2 and comprising an information surface forming the surface, through a target system of the optical unit, wherein the optical tape comprises a portion of the optical tape At least substantially opposite the target system having a tape conveying direction extending substantially perpendicular to the pivot axis of the target system. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019960704167A 1994-12-05 1995-11-06 An optical unit for optically scanning an information surface and an optical scanning device comprising said optical unit KR100403493B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP94203535 1994-12-05
EP94203535.3 1994-12-05

Publications (2)

Publication Number Publication Date
KR970700883A true KR970700883A (en) 1997-02-12
KR100403493B1 KR100403493B1 (en) 2004-03-24

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KR1019960704167A KR100403493B1 (en) 1994-12-05 1995-11-06 An optical unit for optically scanning an information surface and an optical scanning device comprising said optical unit

Country Status (10)

Country Link
US (1) US5661704A (en)
EP (1) EP0742924B1 (en)
JP (1) JPH09509277A (en)
KR (1) KR100403493B1 (en)
CN (1) CN1067792C (en)
DE (1) DE69517797T2 (en)
HK (1) HK1012747A1 (en)
MY (1) MY112194A (en)
TW (1) TW281758B (en)
WO (1) WO1996018166A2 (en)

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US5784168A (en) * 1995-07-03 1998-07-21 U.S. Philips Corporation Position detection system for an object with at least five degrees of freedom
TW319854B (en) * 1996-07-04 1997-11-11 Philips Electronics Nv Optical apparatus for scanning a tape-shaped record carrier
US5995269A (en) * 1996-10-09 1999-11-30 U.S. Philips Corporation Optical unit for optically scanning an information surface, and optical scanning arrangement including the optical unit
US7277424B1 (en) * 1998-07-21 2007-10-02 Dowling Eric M Method and apparatus for co-socket telephony
FR2797514B3 (en) * 1999-08-10 2001-10-12 Thomson Csf MAGNETO-OPTICAL READING DEVICE FOR MULTI-TRACK MAGNETIC STRIPS
US8514675B2 (en) * 2011-05-11 2013-08-20 Oracle International Corporation Suspension system for an optical pickup assembly
US9009745B2 (en) * 2012-11-15 2015-04-14 Oracle International Corporation Thin web optical media guiding method

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JPS62162261A (en) * 1986-01-10 1987-07-18 Hitachi Ltd Photomagnetic recording and reproducing device
NL9001260A (en) * 1990-06-01 1992-01-02 Philips Nv SCANNING DEVICE WITH A ROTATABLE MIRROR, AND DRIVE UNIT USED IN THE SCANNING DEVICE, AND ROTOR BODY USED IN THE DRIVE UNIT.
NL9001253A (en) * 1990-06-01 1992-01-02 Philips Nv DEVICE FOR OPTICALLY DETERMINING THE POSITION AND POSITION OF AN OBJECT AND OPTICAL ENTRY AND / OR DISPLAY DEVICE EQUIPPED WITH SUCH A DEVICE.
KR940006129B1 (en) * 1991-12-24 1994-07-06 삼성전자 주식회사 Two side disk playing apparatus
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WO1995016988A1 (en) * 1993-12-15 1995-06-22 Philips Electronics N.V. Optical scanning means

Also Published As

Publication number Publication date
DE69517797D1 (en) 2000-08-10
TW281758B (en) 1996-07-21
CN1067792C (en) 2001-06-27
EP0742924A1 (en) 1996-11-20
WO1996018166A3 (en) 1996-08-29
DE69517797T2 (en) 2001-02-22
HK1012747A1 (en) 1999-08-06
EP0742924B1 (en) 2000-07-05
CN1144002A (en) 1997-02-26
US5661704A (en) 1997-08-26
KR100403493B1 (en) 2004-03-24
MY112194A (en) 2001-04-30
WO1996018166A2 (en) 1996-06-13
JPH09509277A (en) 1997-09-16

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